vulnerability

Amazon Linux AMI: CVE-2022-49058: Security patch for kernel (ALAS-2022-1591)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Jun 9, 2022
Added
May 22, 2025
Modified
May 30, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:



cifs: potential buffer overflow in handling symlinks



Smatch printed a warning:


arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error:


__memcpy() 'dctx->buf' too small (16 vs u32max)



It's caused because Smatch marks 'link_len' as untrusted since it comes


from sscanf(). Add a check to ensure that 'link_len' is not larger than


the size of the 'link_str' buffer.

Solution

amazon-linux-upgrade-kernel
Title
NEW

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